3-3
Cisco UCS Invicta Scaling System Administration and Configuration Guide, Version 5.0.1.1a
Chapter 3      SSR Configuration
Default Gateway
The default gateway is the device that connects the local network to another network. 
To update the default gateway, do the following:
Step 1 Choose SSR Configuration > Network Settings.
Table 3-1 Bonding Modes
MODE NAME DESCRIPTION ADDITIONAL INFORMATION
mode=0
(balance-rr)
Round-robin policy: 
Transmit packets in 
sequential order from the 
first available slave 
through the last. This 
mode provides load 
balancing and fault 
tolerance.
mode=1 
(active-backup)
Active-backup policy: 
Only one slave in the bond 
is active. A different slave 
becomes active if and only 
if the active slave fails. 
The bond's MAC address 
is externally visible on 
only one port (network 
adapter) to avoid 
confusing the switch. This 
mode provides fault 
tolerance.
mode=4
(802.3ad)
Link Aggregation 
Control Protocol 
(LACP)
IEEE 802.3ad Dynamic 
link aggregation creates 
aggregation groups that 
share the same speed and 
duplex settings. This 
utilizes all slaves in the 
active aggregator 
according to the 802.3ad 
specification. Most 
switches require some 
type of configuration to 
enable 802.3ad mode.
Pre-requisites:
• ethtool support in the base drivers for 
retrieving the speed and duplex of each slave.
• A switch that supports IEEE 802.3ad 
Dynamic link aggregation.
mode=6 
(balance-alb) [Default 
setting on Cisco UCS 
Invicta Scaling 
Systems]
Adaptive load balancing: 
includes balance-tlb plus 
receive load balancing 
(rlb) for IPV4 traffic and 
does not require any 
special switch support.
ALB (mode 6) is the default mode.